It is called carpet yarn. It is used in tufe carpets. It is preferred due to its processing speed, ease of use and antibacterial and antistatic properties. When compared to CF, its properties such as absorption, swelling and flexibility come to the fore. It is used in furniture coverings and outerwear. In the polypropylene yarn production technique called BCF (Bulked continuous filament), the most important distinguishing feature is the air jet texturing unit. The yarn is brought to the required temperature with air and texturized. Air is given to each texture jet from a separate channel and the temperature is kept constant with thermostats.